Acrylate Copolymer/Ultraviolet Curable Oligomer Blends as Pressure-sensitive Adhesives
| Autor: | Yoshihisa Kano, Tomoyuki Kasemura, Shinichi Ishiwata, Takehiro Ozawa |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Surfaces and Interfaces General Chemistry Dynamic mechanical analysis Adhesion Oligomer Surfaces Coatings and Films chemistry.chemical_compound Photopolymer chemistry Mechanics of Materials Dynamic modulus Materials Chemistry Adhesive Polymer blend Composite material Glass transition |
| Zdroj: | The Journal of Adhesion. 72:1-16 |
| ISSN: | 1545-5823 0021-8464 |
| DOI: | 10.1080/00218460008029264 |
| Popis: | For the blends of acrylate copolymer [poly(2-ethylhexyl acrylate-co-acrylic acid); P(2EHA-AA)] with ultraviolet (UV) curable oligomer [urethane acrylate oligomer; UAO], pressure-sensitive adhesive (PSA) properties, such as peel adhesion, probe tack, and holding power were examined. The values of peel adhesion and probe tack of the P(2EHA-AA)/UAO blends were dramatically reduced by UV irradiation. On the other hand, all blends had a high holding power even if these blends were cured by UV irradiation. The mechanism of reduced PSA properties was investigated via dynamic mechanical properties, DSC, and dynamic contact angle (DCA). The peel adhesion decreased monotonically with increasing storage modulus, E′, and loss modulus, E″, for all non-UV and UV-cured blends. Since modulus values and glass transition temperatures, Tg, of these blends after UV irradiation were higher than those of these blends before UV irradiation, we judged that the reduced peel adhesion and probe tack values were caused by t... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|